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Crimp or not to Crimp |
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Sawbones 
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Joined: Mar 04 2022 Location: Texas Status: Offline Points: 132 |
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 Topic: Crimp or not to CrimpPosted: Jan 29 2023 at 2:10pm |
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Any of you reloaders crimping the brass during the seating of the bullet? I very minimally flare the mouth before seating the bullet, barely visible though. Never any problem with seating the bullet. It seems reasonable the brass would self crimp when slammed into the chamber? Certainly would be nice if boat-tail bullets were available.
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When you are dissatisfied and would like to go back to youth, think algebra. Will Rogers
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floydthecat
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Joined: Oct 13 2016 Location: Mississippi Status: Offline Points: 1792 |
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Posted: Jan 29 2023 at 3:24pm |
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I also lightly bell the mouth, but prefer to apply some degree of crimp. It might depend on the quality/strength of the brass to insure tension, but I still like to crimp. Left-side right-side feeding can get rough in some actions leading to possible set-back.
I have one carbine that will feed and fire about any .308 bullet profile. It’s chambered in 7.62 x 25 Tokarev and one must reload for it to get decent accuracy. We often see remarks from shooters wanting to use different profiles and a re-chambered 30-carbine barrel is one way to do it, but it dedicates that barrel to Tokarev only. What’s the big deal……don’t most of us have more than one carbine?
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Sawbones
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Joined: Mar 04 2022 Location: Texas Status: Offline Points: 132 |
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Posted: Jan 29 2023 at 6:40pm |
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Yeah, a crimp set-up is a flick of the wrist so I'll go ahead. Thanks for the tip!
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When you are dissatisfied and would like to go back to youth, think algebra. Will Rogers
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Timothy
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Joined: Jan 13 2022 Location: Crossville TN Status: Offline Points: 77 |
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Posted: Jan 29 2023 at 8:20pm |
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“Any of you reloaders crimping the brass during the seating of the bullet?”
I do a separate taper crimp after the seating step.
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T R
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David Milisock
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Joined: Aug 03 2019 Location: USA Status: Offline Points: 314 |
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Posted: Jan 29 2023 at 8:28pm |
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Accurately trimmed brass with remove the case bellm and apply neck tension in one step.
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David Milisock
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floydthecat
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Joined: Oct 13 2016 Location: Mississippi Status: Offline Points: 1792 |
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Posted: Jan 30 2023 at 9:58am |
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Sizing the fired case restores the mouth and then one trims to his desired length and expands. That’s how I do it anyway. I am not sure if I follow. Why would one size, expand and then trim only to maybe require expanding again? Depending on the dies and how they are set, one can seat the bullet without expanding, but if it’s not set just right, case mouths can get crushed. |
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David Milisock
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Joined: Aug 03 2019 Location: USA Status: Offline Points: 314 |
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Posted: Jan 30 2023 at 10:10am |
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I tumble for cleaning, then trim as there is less wear on the case from the trimmer pilot bushing. I use a RCBS Trim Pro, trimming to the shortest case, in this instance a few thousands under minimum. Once sized they all were 1.285, then once belled, primed and loaded the bullet seating removes the case bell and set next tension. The case length consistency improved the case tension consistency and prevents buckles in the case.
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David Milisock
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35 Whelen
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Joined: Jul 11 2020 Location: Texas Status: Offline Points: 165 |
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Posted: Jan 30 2023 at 6:57pm |
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All of my fired brass, without exception, is sized, trimmed, thrown into a vibratory cleaner until such time that I remember it's there (usually overnight), and a taper crimp applied after seating the bullets. When I seat my cast bullets, which are .309", they require a bit more belling of the case mouth, so I just crimp all loads.
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Liberium
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Joined: Feb 24 2020 Location: Netherlands Status: Offline Points: 49 |
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Posted: Jan 31 2023 at 3:09am |
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well if it goes in a magazine, crimp it, I always use a factory crimp die seperate from the seating die
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1944 national postal meter .30M1
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Lightning330
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Joined: Aug 22 2018 Location: Page, AZ 86040 Status: Offline Points: 105 |
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Posted: Feb 04 2023 at 3:39pm |
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I as well use the factory crimp die. It might be the placebo pill effect. But I do it.
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Lightning 330
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David Milisock wrote: